Avatar of Antonia Christodoulaki

Antonia Christodoulaki WFM

Username: soniahris

Location: Chania

Playing Since: 2018-04-08 (Inactive)

Wow Factor: ♟♟♟

Chess.com

Rapid: 2099
4W / 1L / 1D
Blitz: 2314
83W / 82L / 7D
Bullet: 2145
265W / 219L / 19D

Antonia Christodoulaki (aka soniahris)

Title: Woman FIDE Master

Meet Antonia Christodoulaki, a chess warrior known online as soniahris. With the prestigious title of Woman FIDE Master under her belt, she slices through her opponents’ defenses with tactical precision and psychological flair.

Rating and Style

Antonia’s journey started somewhere in the 1500s bullet rating, and through years of dedication and probably countless cups of coffee, she soared to a blazing bullet peak rating of 2291 by 2024 — more than enough to keep her opponents on their toes.

Her blitz games are no less impressive, reaching a peak rating of 2323. Not to mention her rapid games, which may be fewer in number, but boast a respectable win rate of 66.7%. She plays long, deliberate games, averaging over 74 moves per win, proving patience is indeed a virtue.

Playing Characteristics

Known for never giving up (a comeback rate of 92.8%!), Antonia refuses to bow down, even after losing a piece — in those cases, she has a perfect 100% win rate, making her opponents wonder if they accidentally gave her the gift of a queen.

She’s not a fan of premature surrender either, resigning early less than 2% of the time. Instead, she steers games deep into the endgame stage 75% of the time, where her strategic skills truly shine.

The Mental Game

Despite a modest tilt factor of 6 (which is surprisingly low for someone so fierce), she manages an impressive 52% higher win rate in rated games versus casual ones — talk about turning pressure into power!

Against the People

Her track record against a colorful cast of opponents is... eclectic. She has perfect (100%) winning records over players like asdfglkl, hatmov, and mauriccious_3, while others like stephenabootman have managed to keep her at bay.

Fun Facts

  • Her longest winning streak is 10 games — enough to scare a rook off the board.
  • She’s most deadly on Monday and Wednesday, boasting win rates above 64% — maybe it’s the chess world’s version of the Monday blues getting conquered.
  • Her favorite hours to unleash chess fury are early morning 7 AM (win rate 71.4%) and a strategic 11 AM (70.6%). Clearly, Antonia plays best when the coffee kicks in.

Antonia Christodoulaki is a shining star in the online chess cosmos who combines experience, tactical genius, and a dash of humor to keep the chessboard both a battlefield and a playground. Opponents beware — underestimating soniahris is the first move toward checkmate.


Coach's Avatar

Hi Antonia!

You’re making steady progress, and it shows in the sharp tactical wins you’ve been collecting lately. Below you’ll find a summary of what you’re doing well, the patterns that are costing you points, and an action-oriented training plan to turn those close losses into extra rating gain.

Snapshot

  • Peak blitz rating: 2359 (2025-05-27)
  • Typical session profile: see
    7891011121314151617181920212223100%0%Hour of Day
    &
    MonTueWedThuFriSatSun100%0%Day of Week
    . Notice how your performance dips late in long grinds – we’ll address stamina below.

What’s Working

  • Tactical alertness. Your win against Thee-Chessboy (A46) showed great calculation under time pressure: the Rd5! exchange sac followed by the passed d-pawn was textbook initiative play.
  • Piece activity out of quiet openings. Even from 1.d4 e3 setups you often reach dynamic positions by timely breaks (c4/d5/f4). Opponents who expect a slow Colle often get surprised.
  • Rook lifts & seventh-rank domination. Many of your decisive attacks (see moves 23-30 in the same game) rely on doubling on the 7th. Keep nurturing that instinct—it's a major scoring weapon.

Recurring Issues

  1. Misplaced knights on the rim. In the loss to Símon Þórhallsson both …Na6–c5–a4 and …Na4 left you defending with three pieces off-side. Before playing a wing knight jump, ask yourself “What squares will it control in three moves?” If the answer is only the edge, reconsider.
  2. Loose pawn pushes without a follow-up plan. Early …a5/…b5 (again vs Midgardsormur) or …h5 in several Dutch games create targets. Follow the rule of two reasons: push a wing pawn only when it gains both space and a concrete tactical or structural payoff.
  3. Transition to technical endgames. Your 84-move win vs Thee-Chessboy was instructive, but 30 extra moves were spent converting a K+B+passed-pawn vs lone king. Polishing basic endgame technique will save you clock time and fatigue.
  4. Clock management in critical middlegames. In several games you reached <20 s with unfinished development. Blitz favours players who keep moves simple; when behind on the clock prefer solid central moves over speculative pawn grabs.

Targeted Training Plan (4 weeks)

FocusWeekly RoutineSuccess Criterion
Optimal knight routes & outposts Annotate 10 positions where you or your opponent played …Na6/Na4/Nh4/Nh5. For each, map all safe squares three plies ahead. Spot & avoid rim knights in live games two weeks in a row.
Wing pawn risk assessment Create a flash-card deck of 40 positions; decide in 10 s whether to push a rook pawn or not, then check engine verdict. 75 % accuracy in flash cards; drop early …a5/…h5 frequency by 50 %.
Core technical endings Daily 10-min drill: K+B+rook-pawn vs K, K+rook-pawn vs K, Lucena & Philidor. Use interactive endgame trainer. Convert each theme in under 30 s on trainer.
Clock handling & prophylaxis Play 10 blitz games with a self-imposed rule: no move may consume >10 s before move 20. Review how many prophylactic moves you found. Aim for >90 s remaining at move 20 while maintaining >60 % score.

Opening Tweaks

With White: your 1.d4 e3 system is solid but predictable. Add the quick c4 break vs …d5 to keep Black from equalising so easily; study 15 model games from the Colle-Zukertort with early b3/Bb2.

With Black vs 1.e4: the O’Kelly Sicilian (…a6) has served you well (see the win vs grenelle), but you occasionally misplace the queen after …Qa5+. Review the modern move order 5…Nd5 instead of the immediate capture to keep the queen safer.

Mini-Checklists

  • Before any wing pawn push: “Is my king perfectly safe? Will the pawn be defended by a minor piece next move?”
  • Before exchanging pieces: “Does this trade leave one of my pieces out of play?” (Think of the …Na4 game.)
  • In time trouble: Default to centralising moves and swaps that reduce calculation load. Avoid new weaknesses.

Your Highlight Reel

If you need a confidence boost, replay your best sequence this week:


Keep sharpening your strengths and patching the few leaks we identified. Small, consistent fixes will push you well beyond the 2400 mark.

Good luck, and enjoy the journey!



🆚 Opponent Insights

Most Played Opponents
christosb2006 6W / 0L / 0D
alftryhardyt 3W / 1L / 0D
andybets 3W / 1L / 0D
gm_tomas-manikas 2W / 0L / 1D
primetime1979 1W / 2L / 0D

Rating

Year Bullet Blitz Rapid Daily
2025 2145 2314 2099
2024 2198 2302
2023 2260
2020 1877 2056 1208
2019 1910
2018 1906 1980
Rating by Year20182019202020232024202523141208YearRatingBulletBlitzRapid

Stats by Year

Year White Black Moves
2025 4W / 5L / 1D 4W / 5L / 0D 69.1
2024 10W / 19L / 2D 10W / 18L / 2D 88.8
2023 6W / 1L / 1D 4W / 4L / 0D 80.0
2020 7W / 5L / 0D 5W / 8L / 0D 70.5
2019 21W / 24L / 2D 31W / 17L / 1D 71.5
2018 133W / 96L / 10D 117W / 105L / 8D 70.0

Openings: Most Played

Rapid Opening Games Wins Losses Draws Win Rate
QGD: Ragozin 1 1 0 0 100.0%
QGD: 3.Nc3 Bb4 1 1 0 0 100.0%
Sicilian Defense: Chekhover Variation 1 0 0 1 0.0%
QGA: 3.Nf3 Bg4 1 1 0 0 100.0%
Diemer-Duhm Gambit (DDG): 4...f5 1 1 0 0 100.0%
Dutch Defense 1 0 1 0 0.0%
Blitz Opening Games Wins Losses Draws Win Rate
Sicilian Defense: O'Kelly Variation 17 10 7 0 58.8%
Sicilian Defense: Alapin Variation 9 4 4 1 44.4%
French Defense: Advance Variation 8 0 7 1 0.0%
London System: Poisoned Pawn Variation 7 4 2 1 57.1%
Scotch Game 7 5 2 0 71.4%
Sicilian Defense: Closed 7 3 3 1 42.9%
Döry Defense 6 3 3 0 50.0%
Scandinavian Defense 6 3 3 0 50.0%
Petrov's Defense 6 4 2 0 66.7%
Caro-Kann Defense: Exchange Variation 5 2 3 0 40.0%
Bullet Opening Games Wins Losses Draws Win Rate
Sicilian Defense: O'Kelly Variation 60 30 29 1 50.0%
London System: Poisoned Pawn Variation 58 30 26 2 51.7%
Colle: 3...e6 4.Bd3 c5 38 19 18 1 50.0%
Australian Defense 35 19 15 1 54.3%
Colle: 3...Bf5, Alekhine Variation 35 19 16 0 54.3%
Amar Gambit 24 10 13 1 41.7%
Bird Opening: Dutch Variation, Batavo Gambit 21 13 7 1 61.9%
Döry Defense 21 10 7 4 47.6%
Amazon Attack 16 9 6 1 56.2%
Sicilian Defense: Closed 16 9 6 1 56.2%

🔥 Streaks

Streak Longest Current
Winning 10 2
Losing 6 0